[  520.078225] bond0: (slave eth0): making interface the new active one
[  520.078320] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.237551] bond0: (slave eth0): Releasing backup interface
[  524.313707] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.466337] bond0: (slave eth0): Releasing backup interface
[  528.499317] bond0 (unregistering): Released all slaves